124 lines
4.8 KiB
Java
124 lines
4.8 KiB
Java
package eu.siacs.conversations.ui.util;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.os.AsyncTask;
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import androidx.annotation.DimenRes;
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import android.widget.ImageView;
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import java.lang.ref.WeakReference;
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import java.util.concurrent.RejectedExecutionException;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.entities.Account;
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import eu.siacs.conversations.services.AvatarService;
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import eu.siacs.conversations.ui.XmppActivity;
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public class AvatarWorkerTask extends AsyncTask<AvatarService.Avatarable, Void, Bitmap> {
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private final WeakReference<ImageView> imageViewReference;
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private AvatarService.Avatarable avatarable = null;
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private @DimenRes int size;
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public AvatarWorkerTask(ImageView imageView, @DimenRes int size) {
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imageViewReference = new WeakReference<>(imageView);
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this.size = size;
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}
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@Override
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protected Bitmap doInBackground(AvatarService.Avatarable... params) {
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this.avatarable = params[0];
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final XmppActivity activity = XmppActivity.find(imageViewReference);
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if (activity == null) {
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return null;
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}
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return activity.avatarService().get(avatarable, (int) activity.getResources().getDimension(size), isCancelled());
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}
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@Override
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protected void onPostExecute(Bitmap bitmap) {
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if (bitmap != null && !isCancelled()) {
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final ImageView imageView = imageViewReference.get();
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if (imageView != null) {
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imageView.setImageBitmap(bitmap);
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imageView.setBackgroundColor(0x00000000);
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}
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}
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}
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public static boolean cancelPotentialWork(AvatarService.Avatarable avatarable, ImageView imageView) {
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final AvatarWorkerTask workerTask = getBitmapWorkerTask(imageView);
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if (workerTask != null) {
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final AvatarService.Avatarable old= workerTask.avatarable;
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if (old == null || avatarable != old) {
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workerTask.cancel(true);
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} else {
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return false;
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}
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}
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return true;
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}
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public static AvatarWorkerTask getBitmapWorkerTask(ImageView imageView) {
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if (imageView != null) {
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final Drawable drawable = imageView.getDrawable();
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if (drawable instanceof AsyncDrawable) {
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final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
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return asyncDrawable.getAvatarWorkerTask();
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}
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}
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return null;
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}
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public static void loadAvatar(final AvatarService.Avatarable avatarable, final ImageView imageView, final @DimenRes int size) {
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if (cancelPotentialWork(avatarable, imageView)) {
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final XmppActivity activity = XmppActivity.find(imageView);
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if (activity == null) {
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return;
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}
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final Bitmap bm = activity.avatarService().get(avatarable, (int) activity.getResources().getDimension(size), true);
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setContentDescription(avatarable, imageView);
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if (bm != null) {
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cancelPotentialWork(avatarable, imageView);
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imageView.setImageBitmap(bm);
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imageView.setBackgroundColor(0x00000000);
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} else {
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imageView.setBackgroundColor(avatarable.getAvatarBackgroundColor());
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imageView.setImageDrawable(null);
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final AvatarWorkerTask task = new AvatarWorkerTask(imageView, size);
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final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
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imageView.setImageDrawable(asyncDrawable);
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try {
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task.execute(avatarable);
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} catch (final RejectedExecutionException ignored) {
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}
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}
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}
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}
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private static void setContentDescription(final AvatarService.Avatarable avatarable, final ImageView imageView) {
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final Context context = imageView.getContext();
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if (avatarable instanceof Account) {
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imageView.setContentDescription(context.getString(R.string.your_avatar));
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} else {
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imageView.setContentDescription(context.getString(R.string.avatar_for_x, avatarable.getAvatarName()));
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}
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}
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static class AsyncDrawable extends BitmapDrawable {
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private final WeakReference<AvatarWorkerTask> avatarWorkerTaskReference;
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AsyncDrawable(Resources res, Bitmap bitmap, AvatarWorkerTask workerTask) {
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super(res, bitmap);
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avatarWorkerTaskReference = new WeakReference<>(workerTask);
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}
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AvatarWorkerTask getAvatarWorkerTask() {
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return avatarWorkerTaskReference.get();
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}
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}
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}
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